Tonight's Reading: Building Parallel Programs, Chapter 6
This Week's Research: openMPI
Attending Tues: JeremyA, SteveB, ArthurD (public keys)
Attending Thurs: JeremyA, DevinB (debugging scripts)
This Tuesday we are enabling sshd servers on all nodes of ShadowFax, our superCluster. We also have to generate all 25 keys for pulic key authentication! This way, we create one common user on each node that you can log into from any node. Once you log into one node with this userid/passwd, you can ssh to any other node using the same userid without even specifying the userid or passwd, just each ip address! This makes it very easy to set up a master/worker cluster model (see last year's cluster blogs). openMPI also needs this as a foundation.
I discussed how to set up public key authentication, http://www.knoppix.net/forum/viewtopic.php?t=28933, on the knoppix forum way back in June 2008. Also, we are following these notes http://dvbmonkey.wordpress.com/2009/02/27/getting-started-with-open-mpi-on-fedora about setting up openMPI on Fedora!